Think in portfolios
Follow these articles in order, or open any explanation on its own. Each step includes examples and a question to check your understanding.
Browse the full library →- Step 1 · Concept explained
Risk and Expected Return
Expected return is an estimate of possible future outcomes, often summarized as a probability-weighted average. Investors may require compensation for taking risk, but taking more risk does not guarantee receiving a higher return.
- Step 2 · Concept explained
What Is Asset Allocation?
Asset allocation is the distribution of a portfolio among asset categories such as stocks, bonds and cash. It describes the mix of exposures before the selection of individual securities inside each category.
- Step 3 · Concept explained
What Diversification Does
Diversification spreads exposure across investments whose outcomes are not identical. It can reduce dependence on one issuer or source of risk, but it does not guarantee a profit or prevent losses across an entire market.
- Step 4 · Concept explained
What Is Correlation?
Correlation summarizes the strength and direction of a linear relationship between two measured series. In portfolio analysis it often describes how returns move together over a specified history, not whether two assets are fundamentally the same.
- Step 5 · Theory explained
Modern Portfolio Theory
Modern portfolio theory evaluates investments as combinations of expected returns, variation and co-movement. Its efficient frontier contains portfolios that offer the highest modeled expected return for a given modeled risk, subject to the chosen assumptions and constraints.
- Step 6 · Concept explained
What Is Portfolio Rebalancing?
Rebalancing adjusts a portfolio toward a selected asset mix after market moves or cash flows have changed its weights. It is a method for maintaining exposure, not a guarantee of higher returns.
- Step 7 · Research method
Choosing the Right Benchmark
A benchmark is a reference used to answer a particular performance or exposure question. An appropriate comparison matches the purpose, investable universe and return conventions closely enough to make the conclusion meaningful.
- Step 8 · Theory explained
Behavioral Biases in Investing
Behavioral biases are recurring tendencies in judgment and emotion that can distort how people interpret evidence or make decisions. Recognizing a label is useful, but a repeatable research process is needed to reduce its practical effect.